<template>
    <div class="app-container">

        <!-- 顶部 Header 区域 -->
        <mt-header fixed title="欢迎来到VUE-APP">
			<span slot="left" @click="goBack" v-show="flag">
   				 <mt-button icon="back">返回</mt-button>
  			</span>
		</mt-header>
        <!-- 中间 路由 routerView 区域 -->
		<transition>
			<router-view></router-view>
		</transition>
        <!-- 底部 Tabbar 区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-m" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-m" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-m" to="/cart">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{ $store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-m" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
    </div>
</template>


<style lang="scss" scoped>
	.mint-header {
		z-index: 99;
	}
    .app-container {
		padding-top: 40px;
		overflow-x: hidden;
		padding-bottom: 50px;
	}
	
	.v-enter {
		opacity: 0;
		transform: translateX(100%);
	}

	.v-leave-to {
		opacity: 0;
		transform: translateX(-100%);
		position: absolute;
	}

	.v-enter-active,
	.v-leave-active{
		transition: all 0.5s ease;
	}

	.mui-bar-tab .mui-tab-item-m.mui-active {
    color: #007aff;
	}

	.mui-bar-tab .mui-tab-item-m {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
	}

	.mui-bar-tab .mui-tab-item-m .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
	}

	.mui-bar-tab .mui-tab-item-m .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
	}
</style>

<script>
export default {
	data(){
		return{
			flag: false
		}
	},
	created(){
		this.flag = this.$route.path === '/home' ? false : true
	},
	methods: {
		goBack(){
			 //点击后退
			 this.$router.go(-1)
		}
	},
	watch: {
		'$route.path': function(newVal){
			if(newVal === "/home"){
				this.flag = false;
			}else {
				this.flag = true;
			}
		}
	}
}
</script>



